

def    __a							( SCREAMING_SNAKE_CASE   )   ->  int:






    '''simple docstring'''




    if not numbers:
        return 0

    if not isinstance(_lowerCamelCase							, (list, tuple)   ) or not all(
        isinstance(_lowerCamelCase							, _lowerCamelCase   ) for number in numbers   ):
        raise ValueError('''numbers must be an iterable of integers'''   )

    __UpperCAmelCase					       =      __UpperCAmelCase					       =      __UpperCAmelCase					       =      numbers[0]

    for i in range(1							, len(_lowerCamelCase   )   ):
        # update the maximum and minimum subarray products
        __UpperCAmelCase					       =      numbers[i]
        if number < 0:
            __UpperCAmelCase       ,  __UpperCAmelCase					       =      min_till_now, max_till_now
        __UpperCAmelCase					       =      max(_lowerCamelCase							, max_till_now * number   )
        __UpperCAmelCase					       =      min(_lowerCamelCase							, min_till_now * number   )

        # update the maximum product found till now
        __UpperCAmelCase					       =      max(_lowerCamelCase							, _lowerCamelCase   )

    return max_prod






"""simple docstring"""






from __future__ import annotations



class 			lowercase					:






			def __init__(self  :	List[Any]      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	List[Any]:





				"""simple docstring"""


				lowerCAmelCase												=  key






			def 					UpperCAmelCase							(self  :	Tuple      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int			)       ->	list[str]:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key is an appropriate size
				key %= 255

				return [chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			) for ch in content]






			def 					UpperCAmelCase							(self  :	int      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int			)       ->	list[str]:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key is an appropriate size
				key %= 255

				return [chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			) for ch in content]






			def 					UpperCAmelCase							(self  :	Union[str, Any]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	str:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key can be any size
				while key > 255:
					key -= 255

				# This will be returned
				lowerCAmelCase												=  ''''''

				for ch in content:
					ans += chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			)

				return ans






			def 					UpperCAmelCase							(self  :	Union[str, Any]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	str:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				lowerCAmelCase												=  key or self.__key or 1

				# make sure key can be any size
				while key > 255:
					key -= 255

				# This will be returned
				lowerCAmelCase												=  ''''''

				for ch in content:
					ans += chr(ord(SCREAMING_SNAKE_CASE_			) ^ key			)

				return ans






			def 					UpperCAmelCase							(self  :	List[str]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int = 0			)       ->	bool:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				try:
					with open(SCREAMING_SNAKE_CASE_			) as fin, open('''encrypt.out'''      ,'''w+'''			) as fout:
						# actual encrypt-process
						for line in fin:
							fout.write(self.encrypt_string(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)			)

				except OSError:
					return False

				return True






			def 					UpperCAmelCase							(self  :	List[Any]      ,SCREAMING_SNAKE_CASE_  :	str      ,SCREAMING_SNAKE_CASE_  :	int			)       ->	bool:





				"""simple docstring"""


				assert isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			) and isinstance(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)

				try:
					with open(SCREAMING_SNAKE_CASE_			) as fin, open('''decrypt.out'''      ,'''w+'''			) as fout:
						# actual encrypt-process
						for line in fin:
							fout.write(self.decrypt_string(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)			)

				except OSError:
					return False

				return True


# Tests
# crypt = XORCipher()
# key = 67

# # test encrypt
# print(crypt.encrypt("hallo welt",key))
# # test decrypt
# print(crypt.decrypt(crypt.encrypt("hallo welt",key), key))

# # test encrypt_string
# print(crypt.encrypt_string("hallo welt",key))

# # test decrypt_string
# print(crypt.decrypt_string(crypt.encrypt_string("hallo welt",key),key))

# if (crypt.encrypt_file("test.txt",key)):
#       print("encrypt successful")
# else:
#       print("encrypt unsuccessful")

# if (crypt.decrypt_file("encrypt.out",key)):
#       print("decrypt successful")
# else:
#       print("decrypt unsuccessful")


